.txt1 {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background: #fff;
    z-index: 99;
}

.flex1 {
    display: flex;
}

.flex2 {
    display: flex;
    align-items: center;
}

.flex3 {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex4 {
    display: flex;
    align-items: center;
    justify-content: space-between;
}